Question

Assertion: During the course of evolution, alimentray canal is first completed in aschelminthes, circulatory system in annelids, and respiratory system in arthropods.
Reason: In echinoderms, degestive system is complete with mouth on upper side and anus on the lower side.
A. IF both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer 1

Correct Answer - C
* During the course of evolution, alimentary canal is first completed iin aschelminthes, circulatory system in annelids, and respiratory system in arthropods.
* In echinoderms, digestive system is complete with mouth on lower side and aus on the upper side.